neospud sent me some different materials to try out in the Mark III(i) Commando to find a better hopup material. I mentioned seeing a design for (what I remembered being) hopup using a spring and ball bearing of some sort. He said he'd look into it.

I know you originally meant it as a way to control ROF, but wouldn't it also work with hopup? It also wouldn't wear away as much if at all, being metal instead of rubber

I wouldn't be surprised if your design shows up in his next ultimate inline

I definitely want to try it out and yes, technically it would count as hop-up too because it's applying friction to one side of the BB only. The disadvantage would be that adjusting hop-up and rate of fire independently would be impossible, you can't alter one without changing the other.

Aside from off topic stuff, I think the idea of a multiple barrel gun is not so much rate of fire, but the ability to fire a concentrated burst. Like a big shotgun with around twenty barrels firing 2-3 rounds each. Charge up to a stronghold, and bang! Either way, it is feasible but difficult to find a good reason to build such a monster considering the advantages of simpler weapons.

peedeeswampmonster wrote:Aside from off topic stuff, I think the idea of a multiple barrel gun is not so much rate of fire, but the ability to fire a concentrated burst. Like a big shotgun with around twenty barrels firing 2-3 rounds each.

You could look at it from the aerial gunnery perspective I suppose, in the sense that aircraft weapons tend to have high rates of fire because the fast moving nature of aerial combat means that the target is usually only in your sights for a brief fraction of a second and in that instant you want to put down as much weight of fire as possible.

The one thing you need to do though is make sure you have adequate flow into your chamber, otherwise you will get more BBs on target but with reduced muzzle energy so the net result will probably not be better.